Door lock

Abstract

The utility model provides a door lock which comprises a panel body, a handle part and a limiting piece, the handle part comprises a handle and a handle assembly which are connected with each other, the handle assembly is installed in the panel body, the periphery of the handle assembly is provided with a limiting end, and the panel body is provided with limiting positions arranged on the two opposite sides of the handle assembly. The limiting piece is selectively mounted at any limiting position; under the condition that the limiting piece is detached, the limiting end can rotate to the position corresponding to any limiting position along with the handle so as to switch the mounting direction of the handle; and under the condition that the limiting piece is installed at the limiting position corresponding to the limiting end and is in limiting fit with the limiting end, the limiting piece limits the installation direction of the handling handle. By adopting the scheme, a user can easily adjust the mounting direction of the handle according to room layout and personal habits without professional tools or special skills, so that the door lock can meet the requirements of the user for opening the door by holding the handle with different hands, the applicability of the door lock is enhanced, and the adjustment convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and more specifically, to a door lock. Background Technology

[0002] Smart door locks generally consist of two parts: the horizontal handle (i.e., the handle portion) and the panel. The fingerprint sensor is located on the handle for customer convenience, but this design also leads to a complex internal structure and makes the internal circuitry prone to damage. To address these issues, patent CN217950017U provides a smart fingerprint lock handle reversing and wiring clutch structure, offering a design that prevents damage to the connecting wires and ensures effective adaptation between the handle and the mounting hole.

[0003] However, given that users have the need to open doors with either the left or right handle, existing technologies often require disassembling the handle when changing its direction. This process is complex and difficult, and since it is done in front of the user's door, the wiring can easily be damaged during reassembly due to limitations in personnel or tools. Utility Model Content

[0004] This utility model provides a door lock to improve the convenience of reversing the door lock handle.

[0005] To achieve the above objectives, this utility model provides a door lock, which includes a panel body, a handle portion, and a limiting member. The handle portion includes a handle and a handle assembly connected to each other. The handle is rotatably disposed outside the panel body, and the handle assembly is installed inside the panel body and has a limiting end on its outer periphery. The panel body has limiting positions disposed on opposite sides of the handle assembly, and the limiting member can be selectively installed at any of the limiting positions. When the limiting member is disassembled, the limiting end can rotate with the handle to a position corresponding to any of the limiting positions to switch the installation orientation of the handle. When the limiting member is installed at the limiting position corresponding to the limiting end and engages with the limiting end, the limiting member limits the installation orientation of the handle.

[0006] Furthermore, the handle assembly includes a torsion spring and a handle seat and a handle rod connected to each other. The handle rod is connected to the handle handle. The torsion spring is disposed in the handle seat. One side of the outer periphery of the handle seat has a first groove and a second groove that extend circumferentially and are spaced apart. A stop protrusion is formed on the outer periphery of the handle seat between the first groove and the second groove. One end of the torsion spring protrudes from the first groove, and the other end of the torsion spring protrudes from the second groove. A limiting member can be inserted and removed through the clamping area formed between the two ends of the torsion spring. The two ends of the torsion spring that protrude from the first groove and the second groove together form a limiting end. The limiting end, the limiting member, and the stop protrusion all stop and cooperate with each other.

[0007] Furthermore, the handle has a rectangular groove, the outer circumference of the handle rod is adapted to the rectangular groove, the handle rod passes through the rectangular groove and is fixedly connected to the handle by the handle screw, and one end of the handle is rotatably passed through the panel body by a bearing.

[0008] Furthermore, the torsion spring includes a helical segment and two limiting segments respectively inclinedly disposed at both ends of the helical segment. The two limiting segments respectively protrude from the first groove and the second groove to form limiting ends. The two limiting segments extend radially along the helical segment and the ends of the two limiting segments away from the helical segment approach each other in the axial direction of the helical segment.

[0009] Furthermore, a strip-shaped limiting groove is provided on the inner side of the panel body, and a first limiting protrusion is provided on the side of the handle seat facing the strip-shaped limiting groove. The extension direction of the strip-shaped limiting groove is adapted to the partial rotation path of the first limiting protrusion. A stop block is provided in the strip-shaped limiting groove, and the first limiting protrusion is slidably provided in the strip-shaped limiting groove and stops and cooperates with the stop block at both ends in the extension direction of the strip-shaped limiting groove.

[0010] Furthermore, two second limiting protrusions are also provided on the outer periphery of the handle seat. One second limiting protrusion is located between the first groove and the first limiting protrusion, and the other second limiting protrusion is located between the second groove and the first limiting protrusion. Both second limiting protrusions cooperate with the limiting end stop. The two second limiting protrusions rotate to the same rotation angle and less than or equal to 90° when they abut against the limiting end.

[0011] Furthermore, the panel body has an interconnected mounting plate and a handle plate. One end of the handle assembly is rotatably mounted from one side of the handle plate. The limiting position is located on the mounting plate. An insertion hole is provided on the inner side of the handle plate corresponding to the limiting position. The end of the limiting member passes through the limiting position and is installed in the insertion hole.

[0012] Furthermore, the door lock also includes a control component, a circuit component, and a latch component. The circuit component includes circuit wires and a first circuit board disposed inside the handle and a second circuit board disposed inside the panel. A fingerprint recognition module is disposed on the side of the handle away from the handle component. The first circuit board is electrically connected to the fingerprint recognition module, and the second circuit board is electrically connected to the control component. The control component controls the detachable connection between the latch component and the handle component. The handle has a wire groove for passing through the circuit wires. Part of the wire groove is parallel to the rotation center line of the handle and is disposed on one side of the rotation center line of the handle component. The first circuit board is electrically connected to the second circuit board through the circuit wires.

[0013] Furthermore, the door lock also includes a transmission sleeve, and the latch assembly includes a rotating block, a latching pin, a compression spring, and a cover plate. The rotating block has a limiting hole coaxial with the rotation center line of the handle assembly. One end of the transmission sleeve is rotatably inserted into the limiting hole, and the other end of the transmission sleeve is limited and engaged with the handle assembly. The transmission sleeve has a radially penetrating limiting hole. The latching pin is elastically telescopically disposed in the rotating block through the compression spring and the cover plate. The latching pin can extend into the limiting hole of the transmission sleeve located in the limiting hole to engage the rotating block and the transmission sleeve.

[0014] Furthermore, the control component includes a clutch motor and a lifting member. The second circuit board is electrically connected to the clutch motor, and the clutch motor is driven to connect to the lifting member. The lifting member and the pin member abut against the bottom end of the protruding rotating block in the lifting direction. The abutting surface between the lifting member and the pin member is an arc-shaped surface, and the distance from the axis of the pin member to any point in the rotation direction of the handle assembly is the same.

[0015] Furthermore, the side of the handle facing the transmission sleeve has a mounting groove, and a rotation limiting block is provided in the mounting groove. The end of the transmission sleeve facing the handle has a matching rotation limiting groove, and one end of the transmission sleeve extends into the mounting groove and the rotation limiting block is correspondingly set in the rotation limiting groove.

[0016] Furthermore, the wire-passing groove includes a first through groove and a second through groove that are interconnected. The first through groove is formed inside the handle, and the second through groove is formed between the handle assembly and the handle. The second through groove and part of the first through groove are parallel to the rotation center line of the handle and are located on one side of the rotation center line of the handle assembly. The first through groove has a first through opening that communicates with the second through groove, and the second through groove passes through the handle assembly.

[0017] The present invention provides a door lock comprising a panel, a handle, and a limiting member. The handle includes a handle and a handle assembly connected to each other. The handle is rotatably disposed outside the panel, and the handle assembly is installed inside the panel and has a limiting end on its outer periphery. The panel has limiting positions on opposite sides of the handle assembly, and the limiting member can be selectively installed at any of the limiting positions. When the limiting member is disassembled, the limiting end can rotate with the handle to a position corresponding to any of the limiting positions to switch the installation orientation of the handle. When the limiting member is installed at the limiting position corresponding to the limiting end and engages with the limiting end, the limiting member limits the installation orientation of the handle.

[0018] This solution allows users to adjust and limit the installation orientation of the handle by assembling and disassembling the limiting components at different limiting positions. Users can easily adjust the installation orientation of the handle according to room layout and personal habits without professional tools or special skills. This avoids the need to disassemble the handle when adjusting its installation orientation, simplifies the adjustment process, and allows the door lock to adapt to the needs of users with different hands to open the door, enhancing the applicability of the door lock and improving the convenience of adjustment. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a door lock provided in an embodiment of this utility model is shown;

[0021] Figure 2 It shows Figure 1 An internal diagram of the door lock from another perspective;

[0022] Figure 3 It shows Figure 1 A diagram illustrating the explosion of the door lock;

[0023] Figure 4 It shows Figure 3 Schematic diagram of the central transmission sleeve, handle seat, and torsion spring;

[0024] Figure 5 It shows Figure 1 A structural diagram of the handle from another perspective;

[0025] Figure 6 It shows Figure 1 A schematic diagram of the torsion spring from another perspective;

[0026] Figure 7 It shows Figure 1 A schematic diagram of the transmission sleeve from another perspective;

[0027] Figure 8 It shows Figure 1 A cross-sectional view of the door lock;

[0028] Figure 9 It shows Figure 1 An exploded view of the door lock handle;

[0029] Figure 10 It shows Figure 1 Exploded view of the bolt assembly of a door lock.

[0030] The above figures include the following reference numerals:

[0031] 10. Panel body; 101. Limiting position; 102. Strip-shaped limiting groove; 103. Stop block; 11. Mounting plate; 12. Handle plate; 121. Insertion hole;

[0032] 20. Handle portion; 201. Wire groove; 2011. First wire groove; 20111. First wire opening; 2012. Second wire groove; 20121. Second wire opening; 21. Handle handle; 211. Rectangular groove; 212. Handle base; 213. Handle cover; 214. Fingerprint recognition module; 22. Handle assembly; 221. Torsion spring; 2211. Helical segment; 2212. Limiting segment; 222. Handle base; 2221. First slot; 2222. Second slot; 2223. Stop protrusion; 2224. First limiting protrusion; 2225. Second limiting protrusion; 2226. Mounting groove; 2227. Rotation limit block; 223. Handle rod; 23. Bearing; 24. Handle screw;

[0033] 30. Limiting components;

[0034] 40. Pin assembly; 41. Rotating block; 42. Pin part; 43. Compression spring; 44. Cover plate;

[0035] 50. Control components; 51. Clutch motor; 52. Lifting components;

[0036] 60. Transmission sleeve; 601. Limiting hole; 602. Rotation limiting groove; 603. Third limiting protrusion. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] like Figures 1 to 10As shown, an embodiment of this utility model provides a door lock, which includes a panel body 10, a handle part 20, and a limiting member 30. The handle part 20 includes a handle 21 and a handle assembly 22 connected to each other. The handle 21 is rotatably disposed outside the panel body 10, and the handle assembly 22 is installed inside the panel body 10 and has a limiting end on its outer periphery. The panel body 10 has limiting positions 101 disposed on opposite sides of the handle assembly 22. The limiting member 30 can be selectively installed at any one of the limiting positions 101. When the limiting member 30 is disassembled, the limiting end can rotate with the handle 21 to a position corresponding to any one of the limiting positions 101 to switch the installation orientation of the handle 21. When the limiting member 30 is installed at the limiting position 101 corresponding to the limiting end and cooperates with the limiting end, the limiting member 30 limits the installation orientation of the handle 21.

[0039] In this embodiment, the installation orientation of the handle 21 can be adjusted and limited by assembling and disassembling the limiting member 30 at different limiting positions. Users can easily adjust the installation orientation of the handle 21 according to the room layout and personal habits without professional tools or special skills. This avoids the need to disassemble the handle 21 when adjusting its installation orientation, simplifies the adjustment process, and allows the door lock to adapt to the needs of users with different hands to open the door, enhancing the applicability of the door lock and improving the convenience of adjustment.

[0040] like Figures 1 to 6 as well as Figure 8 As shown, the handle assembly 22 includes a torsion spring 221 and a handle seat 222 and a handle rod 223 connected to each other. The handle rod 223 is connected to the handle handle 21. The torsion spring 221 is disposed in the handle seat 222. One side of the outer periphery of the handle seat 222 has a first groove 2221 and a second groove 2222 that extend circumferentially and are spaced apart. A stop protrusion 2223 is formed on the outer periphery of the handle seat 222 between the first groove 2221 and the second groove 2222. One end of the torsion spring 221 protrudes from the first groove 2221, and the other end of the torsion spring 221 protrudes from the second groove 2222. The limiting member 30 can be inserted and removed through the clamping area formed between the two ends of the torsion spring 221. The two ends of the torsion spring 221 that protrude from the first groove 2221 and the second groove 2222 together form a limiting end. The limiting end, the limiting member 30, and the stop protrusion 2223 all stop and cooperate.

[0041] In this embodiment, the limiting member 30 can stop the rotation of the torsion spring 221 after installation. When the user rotates the handle 21, the handle rod 223 and the handle seat 222 rotate together. The end of the torsion spring 221 located in the handle seat 222 rotates with the handle 21 in the direction of rotation, while the other end of the torsion spring 221 is blocked by the limiting member 30 during the rotation and cannot rotate. The torsion spring 221 is unscrewed and tightened. After the user releases the handle 21, the handle seat 222, handle rod 223 and handle 21 are reset under the elastic action of the torsion spring 221. Understandably, the extension length of the first slot 2221 and the second slot 2222 in the circumferential direction of the handle seat 222 must be large enough, that is, the first slot 2221 and the second slot 2222 must allow sufficient space for the end of the torsion spring 221 to move within the first slot 2221 and the second slot 2222, so that the handle seat 222 can continue to rotate when one end of the torsion spring 221 is stopped by the limiting member 30, avoiding jamming. It should be noted that when the handle 21 is not in use, the two ends of the torsion spring 221 protruding from the first slot 2221 and the second slot 2222 abut against the opposite sides of the limiting member 30 and / or the opposite sides of the stopping protrusion 2223 under elastic action. This arrangement, through the cooperation of the torsion spring 221 and the limiting member 30, achieves the positioning and rotation restriction of the handle 21, ensuring the stability of the door lock during use.

[0042] like Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, the torsion spring 221 includes a helical segment 2211 and two limiting segments 2212 respectively inclinedly disposed at both ends of the helical segment 2211. The two limiting segments 2212 protrude from the first groove 2221 and the second groove 2222 respectively to form limiting ends. The two limiting segments 2212 extend radially along the helical segment 2211, and the ends of the two limiting segments 2212 opposite to the helical segment 2211 approach each other axially along the helical segment 2211. This arrangement not only ensures the stable positioning of the handle 21 under different installation orientations and ensures stable operation under various installation directions, but also simplifies the internal structure of the handle part 20 of the door lock, which helps to reduce production costs.

[0043] like Figures 3 to 5 As shown, the handle 21 has a rectangular groove 211, the outer periphery of the handle rod 223 is adapted to the rectangular groove 211, the handle rod 223 passes through the rectangular groove 211 and is fixedly connected to the handle 21 by the handle screw 24, and one end of the handle 21 is rotatably passed through the panel body 10 by the bearing 23.

[0044] This design utilizes two methods—the adaptable rectangular groove 211, the handle rod 223, and the handle screw 24—to respectively limit and install the handle rod 223 and the handle 21, improving installation convenience and reliability. It also ensures synchronized rotation, avoiding the situation where the handle 21 has a cylindrical groove and the handle rod 223 has a matching cylindrical outer circumference. In this case, synchronized rotation could only be achieved through the handle screw 24, leading to loosening at the screw and potential deviations or failures in synchronized rotation. Furthermore, the rotating installation method using the bearing 23 ensures smooth and effortless rotation of the handle 21, maintaining a good feel even under high-frequency use. Users no longer need to exert force to rotate, reducing fatigue during operation and minimizing damage caused by improper operation, thus extending the overall lifespan of the product.

[0045] like Figure 3 As shown, the door lock also includes a control component 50, a circuit component, and a latch component 40. The circuit component includes circuit wires, a first circuit board disposed in the handle 21, and a second circuit board disposed in the panel body 10. A fingerprint recognition module 214 is disposed on the side of the handle 21 away from the handle component 22. The first circuit board is electrically connected to the fingerprint recognition module 214, and the second circuit board is electrically connected to the control component 50. The control component 50 controls the detachable connection between the latch component 40 and the handle component 22. The handle 20 has a wire groove 201 for passing through the circuit wires. Part of the wire groove 201 is parallel to the rotation center line of the handle 20. This part of the wire groove 201 is disposed on one side of the rotation center line of the handle component 22. The first circuit board is electrically connected to the second circuit board through the circuit wires.

[0046] In this embodiment, as Figure 9As shown, the handle 21 includes a handle base 212 and a handle cover 213. The fingerprint recognition module 214 is housed within the cavity formed by the two and protrudes from the handle cover 213 for easy user pressing. When the user needs to open the door, they hold the handle 21 and perform fingerprint recognition. After successful fingerprint recognition, the control component 50 controls the latch component 40 to connect with the handle component 22. At this time, when the user rotates the handle 21, it can drive the latch component 40 to rotate, thereby unlocking the door. It is understood that if fingerprint recognition fails, the control component 50 will not control the latch component 40 to connect with the handle component 22. In this case, even if the user rotates the handle 21, the latch component 40 will not rotate, and the door will not unlock. This design enables intelligent unlocking of the door lock, improving its intelligence level and user experience. On the other hand, in this embodiment, the wire groove 201 is provided on the handle 21 and the handle assembly 22. When the user turns the handle 21 to unlock or change direction, the handle assembly 22, the wire groove 201 and the circuit wires located in the wire groove 201 will all rotate together. The circuit wire routing channel (wire groove 201) is isolated from other external parts by the bearing 23 and the handle seat 222, so as to avoid the circuit wires from contacting other external parts and being worn during the rotation of the handle 21.

[0047] Understandably, the end of the circuit line connected to the second circuit board cannot rotate. In order to prevent the circuit line from being stretched or even broken during the reversing process, a certain length can be reserved in the handle assembly 22 or the panel body 10 to ensure the reliability of the circuit line when unlocking or changing the handle orientation.

[0048] like Figure 4 , Figure 5 and Figure 8 As shown, the wire-passing groove 201 includes a first through groove 2011 and a second through groove 2012 that are interconnected. The first through groove 2011 is formed inside the handle 21, and the second through groove 2012 is formed between the handle assembly 22 and the handle 21. The second through groove 2012 and part of the first through groove 2011 are parallel to the rotation center line of the handle portion 20 and are located on one side of the rotation center line of the handle assembly 22. The first through groove 2011 has a first through opening 20111 that communicates with the second through groove 2012, and the second through groove 2012 passes through the handle assembly 22.

[0049] In this embodiment, the handle seat 222 and the handle rod 223 are coaxial and have mounting holes that penetrate both. The handle screw 24 is inserted into the mounting hole from the end of the handle rod 223 away from the handle seat 222 and passes through the bottom wall of the mounting hole to be threadedly connected to the threaded hole on the bottom wall of the rectangular groove 211 of the handle 21. The first through groove 2011 is formed in the handle 21 and includes a first groove segment and a second groove segment that are perpendicular to each other. The extension direction of the second groove segment is parallel to the axial direction of the handle rod 223 and is formed parallel to one side of the rectangular groove 211 of the handle 21. The second groove segment includes a first hole groove and a first opening groove that are interconnected. The first hole groove is connected to the first groove segment, and the first opening groove is formed. Inside the rectangular groove 211 of the handle 21, part of the second through groove 2012 is a second opening groove formed on the outside of the handle rod 223 extending into the rectangular groove 211. The second opening groove and the first opening groove formed on the inside of the rectangular groove 211 are directly opposite and connected in the radial direction of the handle rod 223. Another part of the second through groove 2012 is a second hole groove that passes through the handle seat 222. The opening between the first hole groove and the first opening groove is the first through opening 20111. The end of the second opening groove away from the second hole groove is directly opposite and connected to the first through opening 20111. The opening of the end of the second hole groove away from the second opening groove is the second through opening 20121 that communicates with the interior of the panel body 10.

[0050] like Figures 3 to 5 As shown, a strip-shaped limiting groove 102 is provided on the inner side of the panel body 10. A first limiting protrusion 2224 is provided on the side of the handle seat 222 facing the strip-shaped limiting groove 102. The extension direction of the strip-shaped limiting groove 102 is adapted to part of the rotation path of the first limiting protrusion 2224. A stop block 103 is provided in the strip-shaped limiting groove 102. The first limiting protrusion 2224 is slidably provided in the strip-shaped limiting groove 102 and stops and cooperates with the stop block 103 at both ends in the extension direction of the strip-shaped limiting groove 102.

[0051] This configuration, through the stop cooperation of the first limiting protrusion 2224 and the stop block 103, limits the rotation range of the handle seat 222, and simultaneously limits the rotation direction of the handle 21 when changing direction. Specifically, the stop block 103 is located at the bottom center of the strip-shaped limiting groove 102, so that the handle 21 can only rotate upwards when it needs to change the handle direction, avoiding the possibility that the circuit wires in the wire groove 201 will be stretched and broken due to excessive rotation, and further ensuring the reliability of the circuit wires.

[0052] Specifically, the outer periphery of the handle seat 222 is also provided with two second limiting protrusions 2225, one of which is located between the first groove 2221 and the first limiting protrusion 2224, and the other is located between the second groove 2222 and the first limiting protrusion 2224. Both second limiting protrusions 2225 are engaged with the stop of the limiting member 30. The two second limiting protrusions 2225 rotate to the same angle and less than or equal to 90° when they abut against the limiting member 30.

[0053] In this embodiment, the rotation angle of the handle 21 during use is limited by the cooperation of the two second limiting protrusions 2225 with the stop of the limiting member 30, thus preventing excessive rotation. Furthermore, by limiting the rotation angle of the two second limiting protrusions 2225 to abut against the limiting member 30, the rotation range of the handle assembly 22 is further limited. Specifically, the two second limiting protrusions 2225 are symmetrically arranged on opposite sides of the outer periphery of the handle seat 222.

[0054] like Figure 3 As shown, the panel body 10 has a mounting plate 11 and a handle plate 12 connected to each other. One end of the handle assembly 22 is rotatably mounted from one side of the handle plate 12. A limiting position 101 is located on the mounting plate 11. An insertion hole 121 is provided on the inner side of the handle plate 12 corresponding to the limiting position 101. The end of the limiting member 30 passes through the limiting position 101 and is installed in the insertion hole 121. This arrangement avoids the situation where the limiting member 30 is blocked by the handle handle 21 when it is removed from the side of the handle plate 12, which would make removal and installation difficult. It also facilitates the insertion and removal of the limiting member 30 and the reversal of the handle.

[0055] Preferably, a through hole is provided at the limiting position 101 for limiting the insertion of the limiting member 30. The limiting member 30 can be a bolt, and the insertion hole 121 is a threaded hole to ensure the reliability of the installation of the limiting member 30. Two sets of through holes and insertion holes 121 are provided, and the two sets are respectively provided on the left and right sides of the panel body 10.

[0056] like Figures 3 to 8 As shown, the door lock also includes a transmission sleeve 60, and the latch assembly 40 includes a rotating block 41, a latch 42, a compression spring 43, and a cover plate 44. The rotating block 41 has a limiting hole coaxial with the rotation center line of the handle assembly 22. One end of the transmission sleeve 60 is rotatably inserted into the limiting hole, and the other end of the transmission sleeve 60 is limited and engaged with the handle assembly 22. The transmission sleeve 60 has a radially penetrating limiting hole 601. The latch 42 is elastically telescopically disposed in the rotating block 41 through the compression spring 43 and the cover plate 44. The latch 42 can extend into the limiting hole 601 of the transmission sleeve 60 located in the limiting hole to engage the rotating block 41 and the transmission sleeve 60.

[0057] In this embodiment, the transmission sleeve 60 is locked to the handle assembly 22, and can rotate synchronously with the rotation of the handle assembly 22. When the user's fingerprint recognition is successful, the control component 50 controls the end of the pin 42 to extend into the limiting hole 601 of the transmission sleeve 60, and the pin 42 is locked to the transmission sleeve 60. At this time, the user can rotate the handle 21 to drive the handle seat 222, the transmission sleeve 60, and the rotating block 41 to rotate together to unlock. After unlocking, the handle 21 and the others are reset and rotated under the action of the torsion spring 221, the driving effect of the control component 50 on the pin 42 disappears, and the pin 42 is reset and disengaged from the limiting hole 601 under the action of the compression spring 43. Conversely, when the user's fingerprint recognition fails, the control component 50 does not control the movement of the pin 42. At this time, the user can rotate the handle 21 to drive the handle seat 222 and the transmission sleeve 60 to rotate together. The transmission sleeve 60 rotates in the rotating block 41, but the rotating block 41 does not rotate, and the lock cannot be unlocked. This design facilitates the engagement and disengagement of the rotating block 41 and the transmission sleeve 60, allowing users to open and close the door lock via the handle 21, thus ensuring the reliability of the door lock.

[0058] The transmission sleeve 60 has a third limiting protrusion 603 on its outer periphery. The third limiting protrusion 603 is partially disposed in the second through-hole 20121. One end of the circuit wire passes through the gap between the third limiting protrusion 603 and the second through-hole 20121 into the panel body 10.

[0059] like Figure 3 and Figure 10 As shown, the control component 50 includes a clutch motor 51 and a lifting member 52. The second circuit board is electrically connected to the clutch motor 51, and the clutch motor 51 is driven to connect to the lifting member 52. The lifting member 52 and the pin member 42 abut against the bottom end of the protruding rotating block 41 in the lifting direction. The abutting surface between the lifting member 52 and the pin member 42 is an arc-shaped surface. The arc-shaped surface is at the same distance from the axis of the pin member 42 at any point in the rotation direction of the handle component 22.

[0060] In this embodiment, when the user's fingerprint recognition is successful, the second circuit board is electrically connected to the clutch motor 51 and controls the clutch motor 51 to start and drive the lifting member 52 to push the pin member 42 into the limiting hole 601. The compression spring 43 is compressed. At this time, the user can rotate the handle 21 to drive the handle seat 222, the transmission sleeve 60, and the rotating block 41 to rotate together. At the same time, since the contact surface between the lifting member 52 and the pin member 42 is an arc-shaped surface and the distance from the pin member 42 axis is the same at any point in the rotation direction of the handle assembly 22, the pin member 42 will also be in a lifted state during the overall rotation of the pin assembly 40, ensuring the reliability and stability of the engagement between the rotating block 41 and the transmission sleeve 60.

[0061] like Figure 3 , Figure 4 and Figure 7As shown, the handle base 222 has a mounting groove 2226 on the side facing the transmission sleeve 60, and a rotation limiting block 2227 is located within the mounting groove 2226. The end of the transmission sleeve 60 facing the handle base 222 has a matching rotation limiting groove 602. One end of the transmission sleeve 60 extends into the mounting groove 2226, and the rotation limiting block 2227 is correspondingly positioned within the rotation limiting groove 602. This configuration, through the cooperation of the rotation limiting block 2227 and the rotation limiting groove 602, achieves a stable connection between the transmission sleeve 60 and the handle assembly 22, ensuring high precision and stability during transmission. This effectively prevents safety hazards caused by poor transmission or loose connections, guarantees the reliability of their joint rotation, and ensures the safety and reliability of the door lock in critical applications.

[0062] In summary, this utility model provides a door lock. When the user holds the handle, fingerprint recognition is performed. If the recognition is successful, a signal is sent to the control component 50 through the first circuit board, the circuit line, and the second circuit board. The clutch motor 51 starts and drives the lifting component 52 to lift the pin component 42 into the limiting hole 601, so that the rotating block 41 is engaged with the transmission sleeve 60. At this time, the compression spring 43 is compressed. Since the transmission sleeve 60 is engaged with the handle seat 222 through the mounting groove 2226 and the rotation limiting block 2227, the user can rotate the handle 21 to drive the handle assembly 22, the transmission sleeve 60, and the pin assembly 40 to rotate as a whole, thereby unlocking the door. After unlocking, the user releases the handle 21, and the handle 21 and the handle assembly 22 are elastically reset by the torsion spring 221. The pin component 42 is reset under the elastic action of the compression spring 43. Conversely, if recognition fails, the clutch motor 51 will not start. In this case, when the user rotates the handle 21, it will only drive the handle assembly 22 and the transmission sleeve 60 to rotate together, and the transmission sleeve 60 will rotate relative to each other within the rotating block 41. When it is necessary to change the installation orientation of the handle 21, the user removes the limiting piece 30 from one side of the mounting plate 11, rotates the handle 21 upwards to the other direction, and then installs the limiting piece 30 in the limiting position when the handle 21 is in the other installation orientation to achieve the switching of the installation orientation of the handle 21. Users can easily adjust the installation orientation of the handle 21 according to the room layout and personal habits without professional tools or special skills, avoiding the need to disassemble the handle 21 when adjusting the installation orientation of the handle 21, simplifying the adjustment process, making the door lock adaptable to the needs of users with different hands to open the door, enhancing the applicability of the door lock and improving the convenience of adjustment. On the other hand, in this embodiment, the wire groove 201 is provided on the handle 21 and the handle assembly 22. When the user turns the handle 21 to unlock or change direction, the handle assembly 22, the wire groove 201 and the circuit wires located in the wire groove 201 will all rotate together. The circuit wire routing channel (wire groove 201) is isolated from other external parts by the bearing 23 and the handle seat 222, so as to avoid the circuit wires from contacting other external parts and being worn during the rotation of the handle 21.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0065] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A door lock, characterized in that, The door lock includes a panel (10), a handle (20), and a limiting member (30). The handle (20) includes a handle (21) and a handle assembly (22) connected to each other. The handle (21) is rotatably disposed outside the panel (10). The handle assembly (22) is installed inside the panel (10) and has a limiting end on its outer periphery. The panel (10) has limiting positions (101) disposed on opposite sides of the handle assembly (22). The limiting member (30) can be selectively installed at any of the limiting positions (101). When the limiting member (30) is removed, the limiting end can be rotated with the handle (21) to a position corresponding to any of the limiting positions (101) to switch the installation orientation of the handle (21); When the limiting member (30) is installed at the limiting position (101) corresponding to the limiting end and is in limiting cooperation with the limiting end, the limiting member (30) limits the installation orientation of the handle (21). The handle assembly (22) includes a torsion spring (221), a handle seat (222), and a handle rod (223) connected to each other. The handle rod (223) is connected to the handle handle (21). The torsion spring (221) is disposed in the handle seat (222). One side of the outer periphery of the handle seat (222) has a first slot (2221) and a second slot (2222) extending circumferentially and spaced apart. The outer periphery of the handle seat (222) between the first slot (2221) and the second slot (2222) forms a... The stop protrusion (2223) is provided. One end of the torsion spring (221) protrudes from the first slot (2221), and the other end of the torsion spring (221) protrudes from the second slot (2222). The limiting member (30) can be inserted and removed through the clamping area formed between the two ends of the torsion spring (221). The two ends of the torsion spring (221) protruding from the first slot (2221) and the second slot (2222) together form the limiting end. The limiting end, the limiting member (30), and the stop protrusion (2223) all stop and cooperate with each other.

2. The door lock according to claim 1, characterized in that, The handle (21) has a rectangular groove (211), the outer periphery of the handle rod (223) is adapted to the rectangular groove (211), the handle rod (223) passes through the rectangular groove (211) and is fixedly connected to the handle (21) by the handle screw (24), and one end of the handle (21) is rotatably passed through the panel body (10) by the bearing (23).

3. The door lock according to claim 1, characterized in that, The torsion spring (221) includes a helical segment (2211) and two limiting segments (2212) respectively inclinedly disposed at both ends of the helical segment (2211). The two limiting segments (2212) respectively protrude from the first slot (2221) and the second slot (2222) to form the limiting ends. The two limiting segments (2212) extend radially along the helical segment (2211) and the ends of the two limiting segments (2212) away from the helical segment (2211) approach each other in the axial direction of the helical segment (2211).

4. The door lock according to claim 1, characterized in that, The inner side of the panel body (10) is provided with a strip-shaped limiting groove (102). The handle seat (222) is provided with a first limiting protrusion (2224) on the side facing the strip-shaped limiting groove (102). The extension direction of the strip-shaped limiting groove (102) is adapted to part of the rotation path of the first limiting protrusion (2224). A stop block (103) is provided in the strip-shaped limiting groove (102). The first limiting protrusion (2224) is slidably disposed in the strip-shaped limiting groove (102) and is stopped and engaged by the stop block (103) at both ends in the extension direction of the strip-shaped limiting groove (102).

5. The door lock according to claim 4, characterized in that, Two second limiting protrusions (2225) are also provided on the outer periphery of the handle seat (222). One of the second limiting protrusions (2225) is located between the first slot (2221) and the first limiting protrusion (2224), and the other second limiting protrusion (2225) is located between the second slot (2222) and the first limiting protrusion (2224). Both second limiting protrusions (2225) are engaged with the stop of the limiting member (30). The two second limiting protrusions (2225) rotate to the same rotation angle as the limiting member (30) and less than or equal to 90°.

6. The door lock according to claim 1, characterized in that, The panel body (10) has an interconnected mounting plate (11) and a handle plate (12). One end of the handle assembly (22) is rotatably mounted from one side of the handle plate (12). The limiting position (101) is located on the mounting plate (11). The inner side of the handle plate (12) is provided with an insertion hole (121) corresponding to the limiting position (101). The end of the limiting member (30) passes through the limiting position (101) and is installed in the insertion hole (121).

7. The door lock according to any one of claims 1 to 6, characterized in that, The door lock also includes a control component (50), a circuit component, and a latch component (40). The circuit component includes circuit wires and a first circuit board disposed in the handle (21) and a second circuit board disposed in the panel body (10). A fingerprint recognition module (214) is disposed on the side of the handle (21) away from the handle component (22). The first circuit board is electrically connected to the fingerprint recognition module (214), and the second circuit board is electrically connected to the control component (50). The control component (50) controls the detachable connection between the latch component (40) and the handle component (22). The handle part (20) has a wire groove (201) for passing through the circuit wires. Part of the wire groove (201) is parallel to the rotation center line of the handle part (20). This part of the wire groove (201) is disposed on one side of the rotation center line of the handle component (22). The first circuit board is electrically connected to the second circuit board through the circuit wires.

8. The door lock according to claim 7, characterized in that, The door lock also includes a transmission sleeve (60). The pin assembly (40) includes a rotating block (41), a pin (42), a compression spring (43), and a cover plate (44). The rotating block (41) has a limiting hole coaxial with the rotation center line of the handle assembly (22). One end of the transmission sleeve (60) is rotatably inserted into the limiting hole, and the other end of the transmission sleeve (60) is limited and engaged with the handle assembly (22). The transmission sleeve (60) has a radially penetrating limiting hole (601). The pin (42) is elastically telescopically disposed in the rotating block (41) through the compression spring (43) and the cover plate (44). The pin (42) can extend into the limiting hole (601) of the transmission sleeve (60) located in the limiting hole to engage the rotating block (41) and the transmission sleeve (60).

9. The door lock according to claim 8, characterized in that, The control component (50) includes a clutch motor (51) and a lifting member (52). The second circuit board is electrically connected to the clutch motor (51). The clutch motor (51) is driven to connect with the lifting member (52). The lifting member (52) and the pin (42) protrude from the bottom end of the rotating block (41) in the lifting direction and abut against each other. The abutting surface of the lifting member (52) and the pin (42) is an arc-shaped surface. The arc-shaped surface is at the same distance from the axis of the pin (42) at any point in the rotation direction of the handle assembly (22).

10. The door lock according to claim 8, characterized in that, The handle assembly (22) has a mounting groove (2226) on the side facing the transmission sleeve (60) of the handle seat (222). The mounting groove (2226) has a rotation limiting block (2227). The transmission sleeve (60) has a matching rotation limiting groove (602) at one end facing the handle seat (222). One end of the transmission sleeve (60) extends into the mounting groove (2226) and the rotation limiting block (2227) is correspondingly disposed in the rotation limiting groove (602).

11. The door lock according to claim 7, characterized in that, The threading groove (201) includes a first threading groove (2011) and a second threading groove (2012) that are interconnected. The first threading groove (2011) is formed inside the handle (21), and the second threading groove (2012) is formed between the handle assembly (22) and the handle (21). The second threading groove (2012) and part of the first threading groove (2011) are parallel to the rotation center line of the handle portion (20) and are located on one side of the rotation center line of the handle assembly (22). The first threading groove (2011) has a first threading opening (20111) that communicates with the second threading groove (2012). The second threading groove passes through the handle assembly (22).

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